Ever since she discovered the "Sun Dagger" twenty years ago, Anna Sofaer and a team of researchers have been exploring the enigmas posed by massive prehistoric ruins in Chaco Canyon, New Mexico. Now a new explanation of the mystery is emerging. For years archaeologists have assumed that Chaco was primarily an ancient trading center. This film shows that it was, instead, a complex ceremonial center, harmonized by extraordinary astronomical alignments of buildings and roads, and elegant light and shadow markings. Aerial and time lapse footage, computer modeling, and interviews with scholars show how the Chacoan culture oriented and located its major buildings in relation to the sun and moon. Contemporary Pueblo Indians, descendants of the Chacoans, speak of the spiritual significance of Chaco's mysteries in their world today. ^~Narrated by Robert Redford ^~Produced by Anna Sofaer, The Solstice Project ^~Publisher: Bullfrog Films ^~ISBN:1560299991 ^~56 minutes ^~ Teacher's Guide in PDF format